參數資料
型號： S29NS512P0PBJW000
廠商： SPANSION LLC
元件分類： DRAM
英文描述： MirrorBit Flash Family
中文描述： 32M X 16 FLASH 1.8V PROM, 80 ns, PBGA64
封裝： 8 X 9.20 MM, LEAD FREE, TFBGA-64
文件頁數： 38/86頁
文件大?。?/td> 2234K
代理商： S29NS512P0PBJW000
38
S29NS-P MirrorBit
TM
Flash Family
S29NS-P_00_A1 February 20, 2007
D a t a
S h e e t
( A d v a n c e
I n f o r m a t i o n )
Software Functions and Sample Code
Notes
1. Base = Base Address.
2. Last = Last cycle of write buffer program operation; depending on number of words written, the total number of cycles may be from 6 to
37.
3. For maximum efficiency, it is recommended that the write buffer be loaded with the highest number of words (N words) possible.
The following is a C source code example of using the write buffer program function. Refer to the
Spansion
Low Level Driver User’s Guide
(
www.spansion.com
) for general information on Spansion Flash memory
software development guidelines.
/* Example: Write Buffer Programming Command */
/* NOTES: Write buffer programming limited to 16 words. */
/* All addresses to be written to the flash in */
/* one operation must be within the same write buffer. */
/* A write buffer begins at addresses evenly divisible */
/* by 0x20.
UINT16 i; */
UINT16 *src = source_of_data; /* address of source data */
UINT16 *dst = destination_of_data; /* flash destination address */
UINT16 wc = words_to_program -1; /* word count (minus 1) */
*( (UINT16 *)base_addr + 0x555 ) = 0x00AA; /* write unlock cycle 1 */
*( (UINT16 *)base_addr + 0x2AA ) = 0x0055; /* write unlock cycle 2 */
*( (UINT16 *)dst ) = 0x0025; /* write write buffer load command */
*( (UINT16 *)dst ) = wc; /* write word count (minus 1) */
for (i=0;i<=wc;i++)
{
*dst++ = *src++; /* ALL dst MUST BE in same Write Buffer */
}
*( (UINT16 *)sector_address ) = 0x0029; /* write confirm command */
/* poll for completion */
/* Example: Write Buffer Abort Reset */
*( (UINT16 *)base_addr + 0x555 ) = 0x00AA; /* write unlock cycle 1 */
*( (UINT16 *)base_addr + 0x2AA ) = 0x0055; /* write unlock cycle 2 */
*( (UINT16 *)base_addr + 0x555 ) = 0x00F0; /* write buffer abort reset */
Table 6.16
Write Buffer Program
(LLD Functions Used = lld_WriteToBufferCmd, lld_ProgramBufferToFlashCmd)
Cycle
Description
Operation
Byte Address
Word Address
Data
1
Unlock
Write
Base + AAAh
Base + 555h
00AAh
2
Unlock
Write
Base + 554h
Base + 2AAh
0055h
3
Write Buffer Load Command
Write
Program Address
0025h
4
Write Word Count
Write
Program Address
Word Count (N–1)h
Number of words (N) loaded into the write buffer can be from 1 to 32 words.
5 to 36
Load Buffer Word N
Write
Program Address, Word N
Word N
Last
Write Buffer to Flash
Write
Sector Address
0029h
相關PDF資料
PDF描述
S29NS512P0PBJW003 MirrorBit Flash Family
S29NS512P0SBJW000 MirrorBit Flash Family
S29NS512P0SBJW003 MirrorBit Flash Family
S29NS512PABBJW000 MirrorBit Flash Family
S29NS512PABBJW003 MirrorBit Flash Family
相關代理商/技術參數
參數描述
S29NS512P0PBJW003 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit Flash Family
S29NS512P0SBJW000 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit Flash Family
S29NS512P0SBJW003 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit Flash Family
S29NS512PABBJW000 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit Flash Family
S29NS512PABBJW003 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit Flash Family
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